With 8 million members there's no way they're going bankrupt. Each member could donate $1 each month and it would tide them over.
One dollar a month would barely cover the cost of the COs car, gas, insurance, food, clothing, and housing allowances*. Much less all the branches and all the kingdom halls. I don't think any of us know what the Societies costs are. But 8 million dollars a month doesn't go very far when you're a multinational corporation.
They need a lot more than that to stay afloat.
*Each CO is responsible for roughly 1-2 thousand people. So one dollar a month from each person would only be 1-2 thousand dollars per month. Even with low living costs they still consume a sizable chunk of that money each month.